RE: Unix - scheduling

Possible could use at, and have the job re-schedule itself for 4 weeks when it first starts - just a thought

-----Original Message-----
From: Richard Huntley [mailto:rhuntley_at_mindleaders.com]
Sent: Tuesday, July 02, 2002 11:58 AM
To: Multiple recipients of list ORACLE-L
Subject: RE: Unix - scheduling
Is a strick 14 day rule absolutely necessary, if not...a much more hassle free way would be to
simply schedule the cronjob to run on the 1st and 15th of each month, i.e.
# Min Hr Day Mon WkDay Command
0 0 1,15 * * <script>
-----Original Message-----
From: lembark_at_wrkhors.com [mailto:lembark_at_wrkhors.com]
Sent: Tuesday, July 02, 2002 11:13 AM
To: Multiple recipients of list ORACLE-L
Subject: Re: Unix - scheduling
-- Nils Höglund <nils_at_naqua.se> on 07/02/02 03:28:20 -0800
> 0 */4 * * * your_command
$ man 5 cronttab;
The time and date fields are:
field allowed values
----- --------------
minute 0-59
hour 0-23
day of month 1-31
month 1-12 (or names, see below)
day of week 0-7 (0 or 7 is Sun, or use names)
A field may be an asterisk (*), which always stands for ``first-last''.
Ranges of numbers are allowed. Ranges are two numbers separated with a
hyphen. The specified range
is inclusive. For example, 8-11 for an ``hours'' entry specifies
execution at hours 8, 9, 10 and 11.
Lists are allowed. A list is a set of numbers (or ranges)
separated by commas. Examples:
``1,2,5,9'', ``0-4,8-12''.
:
Question: how does "0 */4 * * *" cause something to run every
4 weeks? Unless your version has a different field order. It
might work to try "* */628 * * *" but I'm not sure that cron
allows n>24 for the hourly divisor.
The combination of date and weekday can approximate the 4-week
cycle.
--
Steven Lembark 2930 W. Palmer
Workhorse Computing Chicago, IL 60647
+1 800 762 1582
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